How to solve the installation tax ukey error code 5?

1. file is occupied: during the installation, some files are being used by other programs, resulting in the installation failure. Before installing tax ukey, you can close other running programs, especially those that are using the files to be installed.

2. Permission problem: tax ukey error code 5 was installed because of insufficient permissions, which prevented the installation program from proceeding normally. Run the installer as an administrator, right-click the installer, select Run as administrator, and then install again.